麻豆约拍

Royal Institution Christmas Lectures 2020: Planet Earth - A User's Guide Clips

1. Why the CO2 we breathe out isn't bad for the environment—Up in the Air

   Duration: 02:02

2. How salty is the ocean - and why?—Water World

   Duration: 02:23

3. Earth's 4.5 billion history in 100 metres—Engine Earth

   Duration: 03:00

4. Climate and Weather: What's the difference?—Engine Earth

   Duration: 01:41